If you've been cross-shopping Lexus SUVs, you've probably asked the same question we hear constantly at our showroom: which one is actually bigger, the GX or the LX? Each model has its own strengths depending on how you plan to use it, and a few of the numbers might surprise you. You can browse our new Lexus GX and LX inventory to see both models side by side, but let's break down the real measurements first.
Lexus GX vs. LX: Which Is Bigger?
In terms of overall footprint, the LX is the larger vehicle, with a longer body and a wider cabin designed for flagship comfort. Size isn't a single number though, and the GX closes the gap in ways that matter for real driving situations. The GX actually leads in third-row legroom, maximum cargo volume, and towing capacity. That's the kind of detail a spec sheet reveals but a showroom floor doesn't always show at a glance.
Here's a quick side-by-side look at how the two compare on the numbers that matter most.
| Spec | Lexus GX 550 | Lexus LX 600 / 700h |
|---|---|---|
| Length | 197.05 in. | 200.2 – 200.59 in. |
| Width (w/o mirrors) | 77.95 – 78.74 in. | 78.35 in. |
| Height | 75.39 – 77.17 in. | 74.21 – 74.61 in. |
| Wheelbase | 112.2 in. | 112.2 in. |
| 2nd-Row Legroom | 36.73 in. | 36.61 in. (33.86 in. Ultra Luxury) |
| 3rd-Row Legroom | 37.89 in. | 31.1 in. |
| Max Cargo (3-row models) | 76.9 cu. ft. | 64.0 cu. ft. (LX 600) / 62.4 cu. ft. (LX 700h) |
| Max Cargo (2-row models) | 90.5 cu. ft. (Overtrail, Overtrail+) | 71.0 cu. ft. (LX 600) / 62.6 cu. ft. (LX 700h) |
Exterior Dimensions Compared
Length, Width, and Height
The GX 550 measures 197.05 in. in length, while the LX stretches to 200.59 in. on most grades and 200.2 in. on F SPORT, giving it a slightly longer, more commanding stance. Width without mirrors is close between them: 77.95 in. on standard GX trims, widening to 78.74 in. on Overtrail and Overtrail+, versus 78.35 in. for the LX. Neither model has a dramatic advantage squeezing through narrow lanes.
Height flips the script a bit. The GX stands taller, at 75.39 in. on standard trims and up to 77.17 in. on the Overtrail grades, compared to the LX at 74.21 to 74.61 in. depending on wheel and tire size. That comes down to the GX's more rugged, body-on-frame stance and its taller ride height.
Wheelbase and Turning Radius
Both SUVs share a 112.2 in. wheelbase, so ride stability on the highway is comparable between them. Turning circles are close as well, with both landing right around 39.4 ft. curb-to-curb, and the LX needing roughly 42.0 ft. wall-to-wall on its 22 in. wheel setup.
For anyone dealing with tight San Jose garages or the tiered parking structures downtown, that similarity means neither model has a real edge in close-quarters maneuvering, though the GX's shorter overall length can help when backing into a compact space.
Interior Space and Passenger Comfort
Front and Second-Row Room
Up front, the LX offers more shoulder and hip room, at 61.42 in. and 59.65 in. respectively, compared to the GX's 59.51 in. shoulder and 56.46 in. hip room. Front legroom is essentially a wash, 41.14 in. in the LX versus 41.18 in. in the GX.
Second-row comfort is close too. The GX offers 43.15 in. of headroom and 36.73 in. of legroom, while the LX provides 38.98 in. of headroom and 36.61 in. of legroom. One exception worth knowing: the LX 700h Ultra Luxury swaps the standard bench for a four-seat second row with a reclining right-rear seat and ottoman. That configuration trades measured legroom, dropping to 33.86 in., for a level of comfort closer to what you would expect in a chauffeured sedan.
Third-Row Seating Space
GX third-row legroom measures 37.89 in., about 6.8 in. more than the LX's 31.1 in. For families doing regular third-row carpooling around the Bay Area, that's a meaningful difference for anyone riding back there on a regular basis. The GX seats up to seven passengers, and that legroom advantage makes those rear seats genuinely usable for adults, not just kids on short trips.
Cargo Capacity: Behind the Third Row and Maximum Storage
Cargo numbers depend heavily on configuration, so it helps to compare like for like.
In three-row form, the LX 600 offers 11 cu. ft. behind the third row, about 44 cu. ft. with the third row folded, and roughly 64 cu. ft. with the second and third rows down. The three-row GX comes in at 10.3 cu. ft., 40.2 cu. ft., and 76.9 cu. ft. in those same configurations. Behind the third row the two are nearly identical, but with everything folded the GX opens up close to 13 cu. ft. more usable space.
The hybrid gives up ground here. The LX 700h holds about 7.2 cu. ft. behind the third row and tops out near 62.4 cu. ft. with the rear rows folded, noticeably less than the LX 600.
Two-row layouts widen the gap further. The GX Overtrail and Overtrail+ reach 45.6 cu. ft. behind the second row and a maximum of 90.5 cu. ft. with the seats folded. A two-row LX 600 offers about 46 cu. ft. with all seats up and a maximum of 71 cu. ft., while the two-row LX 700h maxes out around 62.6 cu. ft. If you are hauling gear for a trip to the lake or moving bulky equipment, the GX is the more accommodating of the two.
Size vs. Capability: Towing and Payload
The GX runs a 3.4L twin-turbo V6 producing 349 hp and 479 lb-ft of torque, with a maximum tow rating of 9,063 lbs. Ratings vary by grade and equipment, so confirm the number for the specific trim you are considering.
The LX 600 uses the same twin-turbo V6 tuned to 409 hp and 479 lb-ft, and the LX 700h hybrid produces 457 hp and 583 lb-ft. Both are rated to tow 8,000 lbs. when equipped with the Towing Package. That leaves the GX with roughly a 1,000 lb. advantage at the top of its range, which matters if you are hitching a boat for a weekend on one of the local lakes or heading for trails outside Silicon Valley.
Curb weight and GVWR differ as you would expect. The GX sits around 5,467 lbs. with a 6,920 lb. GVWR. The LX 600 ranges from 5,754 to 5,875 lbs. with a 7,230 lb. GVWR, and the heavier LX 700h runs 6,128 to 6,261 lbs. with a 7,450 lb. GVWR.
Choosing the Right Size for Your Lifestyle
The GX: Rugged Versatility in a Mid-Size Frame
The GX is built for buyers who want real capability without stepping into flagship-size territory. Minimum ground clearance is 8.7 in. on standard trims and 9.84 in. on the Overtrail grades, which suits hillside driveways and unpaved trails around the region. Its power figures pair with towing and cargo numbers that hold up in practice rather than just on paper. Across the lineup, from the standard trims through the off-road-focused Overtrail and Overtrail+, the GX balances comfort with outdoor capability.
The LX: Flagship Space and Presence
The LX remains at the top of the Lexus SUV lineup for good reason. Its extra length, wider front seating, and the available reclining second-row seat with ottoman create a cabin built around premium comfort. Ground clearance of 7.87 to 8.07 in. still handles rough surfaces, and the LX 700h adds meaningful torque for effortless highway work.
For buyers who prioritize front and second-row luxury and value the LX's commanding road presence, it is the stronger choice for chauffeured comfort or long drives with fewer passengers in back.
Experience the Difference at Lexus Stevens Creek
Numbers on a page only tell part of the story. The best way to understand the difference between the GX and LX is to sit in both, fold down the seats, and see how each one fits your daily routine. Maybe that's a carpool run, maybe it's a weekend tow, maybe it's just a drive through the Santa Clara hills. Our team can walk you through every trim and configuration in person.
Contact Lexus Stevens Creek to schedule a test drive and get a real feel for how these two Lexus SUVs compare on the road.
Lexus GX vs. LX Size FAQ
Is the Lexus GX or LX Bigger Overall?
The LX is longer overall, at 200.59 in. versus the GX's 197.05 in., and it offers more front shoulder and hip room, making it the larger flagship model in terms of overall footprint. The GX is the taller of the two, particularly in Overtrail form.
Which Model Offers More Third-Row Legroom?
The GX actually leads here, with 37.89 in. of third-row legroom compared to 31.1 in. in the LX, a difference of roughly 6.8 in. that makes the GX's back seat more comfortable for adult passengers.
Is Cargo Space Always Greater in the LX?
No, and in most configurations the opposite is true. A three-row GX holds up to 76.9 cu. ft. with the rear rows folded, compared to about 64 cu. ft. in a three-row LX 600 and 62.4 cu. ft. in the LX 700h. In two-row form, the GX Overtrail and Overtrail+ reach 90.5 cu. ft. against the LX 600's 71 cu. ft. The LX holds a slight edge only in the space directly behind the third row, at 11 cu. ft. versus 10.3 cu. ft.